Database Visual Querying

Based on Claudio Cerullo and Marco Porta opthalmic border ones is a system use to have reverse query preparednesss in computer operations. Cerullo and Porta noted that the inherently unidimensional structure of SQL (Structured Query Language) sometimes hinder correct query formulation so visual approaches were developed to take advantage of the greater bandwidth of the valet de chambre vision channel (Cerullo & Porta 2007, p. 1).While visual approaches are prominent both in the airline industry and the military, however, Cerullo and Porta introduces visual approaches as a better way of graphically building queries by composing represent SQL elements. Cerullo and Porta stated, The spatial arrangement of graphic objects can in fact highlight the structure of queries, providing a global outlook which can seldom be obtained with a textual description (p. 1). Speaking of the visual approach in the computer use, Reese (1999) stated, The visual approach can give you a sense of actua lly using the program (p. 41).The visual approaches therefore which was support by Cerullo and Porta as useful for both inexperienced and experts users for sense the basics of relational database interaction, and for defining complex interrelations among sub queries in visual manner, is very important as it also provides answer to the problem constitute by the strict syntax use to construct request which draw out to a non ambiguous semantic. Jaco and Stephanidis pointed out that their disadvantages is the training needed for their use devising them in adequate for end users who are not database or GIs experts (p. 964).The insist that Visual approaches offer an easy and intuitive mean for spatial human body expression (p. 964) Reference Cerullo, C. Porta, M. (2007) A System for Database Visual Querying and Query visual image Complementing Text and Graphics to Increase Expressiveness IEEE Computer Society Jacko, J. A. & Stephanidis, C. (2003) Human-Computer Interaction stark naked Jersey Lawrence Earlbaum Associates, Inc. Reese, J. (999) Internet Books for Educators, Parents, and Students USA Libraries Unlimited